From d4c1b560d59f215e401bf3ee61886c8b95ac3c8e Mon Sep 17 00:00:00 2001
From: Drew Weymouth <dweymouth@gmail.com>
Date: Tue, 18 Mar 2025 18:11:58 -0700
Subject: [PATCH] do fast scan for remote players on startup

---
 backend/app.go             |  4 ++--
 backend/playbackmanager.go | 10 +++++++++-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/backend/app.go b/backend/app.go
index d2486bb..55ca333 100644
--- a/backend/app.go
+++ b/backend/app.go
@@ -153,7 +153,7 @@ func StartupApp(appName, displayAppName, appVersion, appVersionTag, latestReleas
 	}
 
 	// Periodically scan for remote players
-	go a.PlaybackManager.ScanRemotePlayers(a.bgrndCtx, 5 /*waitSec*/)
+	go a.PlaybackManager.ScanRemotePlayers(a.bgrndCtx, true /*fastScan*/)
 	go func() {
 		t := time.NewTicker(5 * time.Minute)
 		for {
@@ -162,7 +162,7 @@ func StartupApp(appName, displayAppName, appVersion, appVersionTag, latestReleas
 				t.Stop()
 				return
 			case <-t.C:
-				a.PlaybackManager.ScanRemotePlayers(a.bgrndCtx, 10 /*waitSec*/)
+				a.PlaybackManager.ScanRemotePlayers(a.bgrndCtx, false)
 			}
 		}
 	}()
diff --git a/backend/playbackmanager.go b/backend/playbackmanager.go
index bf24a9a..4d27e5f 100644
--- a/backend/playbackmanager.go
+++ b/backend/playbackmanager.go
@@ -96,7 +96,15 @@ func (p *PlaybackManager) addOnTrackChangeHook() {
 	})
 }
 
-func (p *PlaybackManager) ScanRemotePlayers(ctx context.Context, waitSec int) {
+func (p *PlaybackManager) ScanRemotePlayers(ctx context.Context, fastScan bool) {
+	if fastScan {
+		p.scanRemotePlayers(ctx, 1 /*waitSec*/)
+		// continue to slow scan to detect players that take longer to respond
+	}
+	p.scanRemotePlayers(ctx, 10 /*waitSec*/)
+}
+
+func (p *PlaybackManager) scanRemotePlayers(ctx context.Context, waitSec int) {
 	devices, _ := device.SearchMediaRenderers(ctx, waitSec, services.AVTransport, services.RenderingControl)
 
 	var discovered []remotePlayer